COSRX
COSRX Advanced Snail 96 Mucin Power Essence
Low risk75/100
COSRX
Hyaluronic Acid Hydra Power Essence
Essences
Some ingredients carry a low-risk flag. Read the formulation context before deciding.
7 of 7 ingredients rated
Is it suitable during pregnancy?
MamaSkin rates the recorded formula for COSRX Hyaluronic Acid Hydra Power Essence as Low risk (79/100). Review the ingredient context and any manual-review explanation before deciding.
Why this rating? Manual-review explanation
Manual review 2026-07-22: the formula contains Ethyl Hexanediol, classified as Low Risk under MamaSkin's precautionary pregnancy policy. Animal developmental findings occurred at high doses that also caused maternal toxicity, while CIR concluded that normal cosmetic use is safe. This is a cautious classification, not a known human pregnancy contraindication.
7 of 7 ingredient entries on this page have a recorded score, evidence summary and source text. That describes documentation coverage, not proof that the finished formula has been clinically tested during pregnancy.
How we assess productsIngredient breakdown
The recorded formula, with evidence behind each rating. Unmatched ingredients are marked Not assessed in grey.
Ingredient ratings and evidence
Higher-risk flags first. Open an ingredient for evidence.
Ethyl Hexanediol
Low risk
Ethyl Hexanediol is an aliphatic alcohol used mainly as a cosmetic solvent. It can be absorbed through skin. Animal studies reported developmental effects after high oral and dermal doses, but those effects occurred at doses that also caused substantial maternal toxicity. CIR concluded that the ingredient is safe as cosmetically used and later reaffirmed that conclusion. MamaSkin nevertheless classifies it as low risk under its precautionary pregnancy-screening policy; this is not a known human pregnancy contraindication at normal cosmetic exposure.
Sources: CIR: Final Report on the Safety Assessment of Ethyl Hexanediol https://cir-reports.cir-safety.org/view-attachment/?id=acd818db-8d74-ec11-8943-0022482f06a6; CIR: Annual Review of Cosmetic Ingredient Safety Assessments 2007-2010 https://journals.sagepub.com/doi/10.1177/1091581811412618; Australian TGA: Final decisions on Ethyl Hexanediol, June 2017 https://www.tga.gov.au/sites/default/files/scheduling-delegates-final-decisions-june-2017.pdf
Hippophae Rhamnoides Water
No known risks
hippophae rhamnoides water is a botanical-derived cosmetic conditioning ingredient. The reviewed identity is not a concentrated essential oil or an oral herbal preparation. Available cosmetic evidence and expected topical exposure did not identify a pregnancy-specific contraindication, although botanical irritation or allergy remains possible.
Sources: CIR ingredient-specific and botanical-family safety assessments; CIR Quick Reference Table https://www.cir-safety.org/supplementaldoc/quick-reference-table-december-2025; European Commission CosIng
Butylene Glycol
No known risks
Solvent and humectant commonly used in leave-on products. Not associated with pregnancy-specific concerns at cosmetic exposure levels.
Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)
Glycerin
No known risks
Glycerin is a widely used humectant that supports hydration and the skin barrier, with a long safety record and no known pregnancy or breastfeeding concerns in topical cosmetic use.
Sources: CIR; EU/UK Cosmetics Regulation
1,2-Hexanediol
No known risks
1,2-Hexanediol is commonly used as a solvent and preservative booster; topical exposure is low and it has no known pregnancy or breastfeeding concerns at cosmetic concentrations, though very sensitive skin may occasionally react.
Sources: CIR; EU/UK Cosmetics Regulation
Show all 7 ingredients
Sodium Hyaluronate
No known risks
Sodium hyaluronate (hyaluronic acid salt) is used for hydration and cushioning, with very low systemic absorption from topical use and no known pregnancy or breastfeeding concerns at cosmetic concentrations.
Sources: CIR; EU/UK Cosmetics Regulation
Panthenol
No known risks
Panthenol (pro-vitamin B5) is used for soothing and barrier support and is generally well tolerated, with no known pregnancy or breastfeeding concerns in topical cosmetic use.
Sources: CIR; EU/UK Cosmetics Regulation
Full recorded ingredient list
Hippophae Rhamnoides Water, Butylene Glycol, Glycerin, 1,2-Hexanediol, Sodium Hyaluronate, Panthenol, Ethyl Hexanediol
Ingredient ratings refreshed 1 October 2026. Formulas vary by market and can change. Always compare with your packaging.
Questions about this assessment
Why does COSRX Hyaluronic Acid Hydra Power Essence have a Low risk rating?
Manual review 2026-07-22: the formula contains Ethyl Hexanediol, classified as Low Risk under MamaSkin's precautionary pregnancy policy. Animal developmental findings occurred at high doses that also caused maternal toxicity, while CIR concluded that normal cosmetic use is safe. This is a cautious classification, not a known human pregnancy contraindication. The product score is a stored assessment, not a clinical safety guarantee.
Does a barrier-care product name establish pregnancy suitability?
No. This recorded formula contains Panthenol or Madecassoside, but a barrier-care claim does not establish the assessment of all its other ingredients. Read the individual ingredient evidence and any manual-review explanation, and compare the recorded list with your packaging.
Has every ingredient in COSRX Hyaluronic Acid Hydra Power Essence been assessed?
7 of 7 ingredient entries on this page have a recorded score, evidence summary and source text. That describes documentation coverage, not proof that the finished formula has been clinically tested during pregnancy.
Does this assessment apply to my COSRX Hyaluronic Acid Hydra Power Essence?
Only if the ingredient list on your packaging matches the recorded formula shown here. Formulas can differ by market and change over time. Compare the full list, not just the product name; report a mismatch if it differs.
Does this pregnancy assessment also establish breastfeeding suitability?
No. This page presents a pregnancy-focused product assessment. Do not infer a breastfeeding conclusion from its score or label; breastfeeding requires a separate assessment of the formula and how it is used.
